On Mon, 4 May 2009, Mandeep Sandhu wrote: > Hi all, > > I have to reverse-engineer a commodity USB-to-Ethernet LAN controller in s/w. > This is a high-speed device. > > I'm using the nokia n810 for simulating/debugging on the device side. I have no > access to the host though! :( Why not? > I'm planning to use the Beagle analyser for sniffing the initial > handshake happening > between the host and the device (cos thats where it's currently stuck). > > Because of budgetary constraints, I'm going for the cheaper USB 12 > (for low / full-speed > devices). The totalphase site mentions that high-speed devices can > also be debugged with > this variant by putting a full-speed hub in-between. > > Will there be any issues if I go with this kind of a setup (i.e having > a full-speed hub in between). There shouldn't be any significant problem, _provided_ the LAN converter is able to work correctly at full speed. Have you tested this? > Or should I rather go with the more expensive (3 times more!) USB 480 > which can analyse > high-speed devices. Though for buying this, I'll have to really > hard-press my boss for it! :) > > Has anyone here worked with the Beagle analyser? Wanted to get some > feedback on it's use. I have used the Beagle-12. It's not difficult to do, although the user interface is a little awkward. I heard that Totalphase was planning an update to their software (it may already have been released) to improve the interface. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
